1 ; RUN: opt < %s -instcombine -S | FileCheck %s 2 ; 3 ; The idea is that we want to have sane semantics (e.g. not assertion failures) 4 ; when given an allocsize function that takes a 64-bit argument in the face of 5 ; 32-bit pointers. 6 7 target datalayout="e-p:32:32:32" 8 9 declare i8* @my_malloc(i8*, i64) allocsize(1) 10 11 define void @test_malloc(i8** %p, i32* %r) { 12 %1 = call i8* @my_malloc(i8* null, i64 100) 13 store i8* %1, i8** %p, align 8 ; To ensure objectsize isn't killed 14 15 %2 = call i32 @llvm.objectsize.i32.p0i8(i8* %1, i1 false) 16 ; CHECK: store i32 100 17 store i32 %2, i32* %r, align 8 18 19 ; Big number is 5 billion. 20 %3 = call i8* @my_malloc(i8* null, i64 5000000000) 21 store i8* %3, i8** %p, align 8 ; To ensure objectsize isn't killed 22 23 ; CHECK: call i32 @llvm.objectsize 24 %4 = call i32 @llvm.objectsize.i32.p0i8(i8* %3, i1 false) 25 store i32 %4, i32* %r, align 8 26 ret void 27 } 28 29 declare i32 @llvm.objectsize.i32.p0i8(i8*, i1) 30
